NSN 5305-01-175-3673

Part Details | CLOSE TOLERANCE SCREW

5305-01-175-3673 A SCREW, MACHINE or SCREW, CAP, SOCKET HEAD whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 IN.) (0.025 mm) or less of a specific diameter for items (1.000 IN.) (25 mm) or less in diameter. Items over (1.000 IN.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 IN.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 IN.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the Screw Thread Standards, FED STD H28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

Alternate Parts: ST3M791C415, ST3M791C4-15, ST3M791C415, ST3M791C4-15, LB35415, LB35-4-15, LB35415, LB35-4-15, 10115546, 5305-01-175-3673, 01-175-3673, 5305011753673, 011753673

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53MAR 30, 198401-175-367329294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

HEXAGON

Cross Reference | NSN 5305-01-175-3673
Part Number Cage Code Manufacturer
ST3M791C4-1584256AVIBANK MFG., INC.
ST3M791C4-1576301BOEING COMPANY, THEDBA BOEING
LB35-4-1573197HI-SHEAR CORPORATION
LB35-4-15L4528LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC
10115546A486GNIMIKKEISTOKESKUS NCB FINLAND
Technical Data | NSN 5305-01-175-3673
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.474 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
FASTENER LENGTH1.448 INCHES MINIMUM AND 1.528 INCHES MAXIMUM
HEAD STYLE0 HEXAGON COUNTERSUNK
HEAD DIAMETER0.5018 INCHES MINIMUM AND 0.5066 INCHES MAXIMUM
COUNTERSINK ANGLE100.0 DEGREES NOMINAL
INTERNAL DRIVE STYLE HEXAGON
WIDTH ACROSS FLATS0.250 INCHES NOMINAL
GRIP LENGTH0.938 INCHES MINIMUM AND 0.954 INCHES MAXIMUM
GRIP DIAMETER0.2487 INCHES MINIMUM AND 0.2492 INCHES MAXIMUM
SPECIAL FEATURESINCLUDES NUT